1. You hand in application to Handling agents ( eg Fedex etc)who act on behalf of BHC.
2. They record and forward docs to staff at BHC post.
3. Staff at BHC post make all background inquiries about applicants and sponsor ( ie passport and doc checks, employment inquiries, liaise with government organizations etc)
4. All of No 3 passed to Entry Clarance Officer, who will make decision to grant or refuse visa.
5. No 4 is relayed back to No 2, who pass it back onto No 1, whose job is contact you to inform you the decision and to collect documents.
You are right about ECO taking about 10 minutes to make a decision, cos he has all the info collated by No 3 when making a final decision. Mind you not all BHC post works to this procedure. Only those with high number of applicants
Hope that answers your question.
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